Lectures on Literature was published posthumously in 1980, three years after Nabokov’s death. According to an interview included in Strong Opinions, Nabokov had intended to publish a volume of essays based on the lectures he delivered at Cornell between 1948 and 1958, but his death in 1977 meant that this, among other projects, was left unaccomplished. Consequently, the volume brought out by Harcourt Brace depended heavily upon its editor, Fredson Bowers, and assistance from Nabokov’s surviving wife and son. It was constructed from archival materials including Nabokov’s teaching copies of the works in question, sketched diagrams, and chronologies as well as pages of text both handwritten and typed. Thus, …
Norman, William. "Lectures on Literature". The Literary Encyclopedia. First published 04 October 2006; last revised 30 November -1.
[http://www.litencyc.com/php/sworks.php?rec=true&UID=4048, accessed 25 April 2015.]